NEET TEST SERIES 127 BIOLOGY

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1. Shedding of leaves, flowers and fruits due to change in hormone balance in plants is:

(a) Senescence
(b) Abscission
(c) Photorespiration
(d) RipeningDeselect Answer

a)

b)

c)

d)

None

2. Assertion (A): The Cycas have pinnate leaves for a few years, while in Conifers, the leaves have a needle like structure with reduced surface are (A)

Reason (R): The leaves have a sunken stoma, which reduces water loss from the surface of the leaves.

(a) A is true but R is false.
(b) A is false but R is true.
(c) Both A and R are true and R is the correct explanation of (A)
(d) Both A and R are true but R is not the correct explanation of (A)Deselect Answer

a)

b)

c)

d)

None

3. Read the following five statements and select the option with all correct statements:
(I) Mosses and Lichens are the first organisms to colonise bare rock.
(II) Selaginella pteridophyte. is a homosporous
(III) Coralloid roots in Cycas have VAM.
(IV) Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic
(V) In gymnosperms, male and female gametophytes are present within sporangia located on the sporophyte

(a) (II), (III), and (IV)
(b) (I), (IV), and (V)
(c) (II), (III), and (V)
(d) (I), (III), and (IV)Deselect Answer

a)

b)

c)

d)

None

4. In Chrysanthemum, the lateral branches originate from the basal and underground portion of the main stem and then come obliquely upward giving rise to leafy shoot. These branches are called:

(a) Stolon

(b) Sucker

(c) Runner

(d) Offset

Deselect Answer

a)

b)

c)

d)

None

5. Consider the following set of plants: Funaria, Selaginella, Cycas, Marchantia, Riccia, Azolla, Salvinia, Polytrichum, Psilotum Anthoceros, How many of the above plants are heterosporous?

(a) Four
(b) Three
(c) Five
(d) Two

Deselect Answer

a)

b)

c)

d)

None

6. A rasping organ for feeding called radula is present in the phylum

a) Echinodermata
b) Arthropoda
c) Mollusca
d) Chordata

Deselect Answer

a)

b)

c)

d)

None

7. Which of the following characteristic distinguish arthropoda from annelids and molluscs?

a) An external skeleton made of chitin (a polysaccharide) and protein rather than a shell made chiefly of mineral salts
b) Subdivision of the legs into movable segments
c) Distinct group of muscles, derived from many body segments that move the separate part of the exoskeleton
d) All of the above

Deselect Answer

a)

b)

c)

d)

None

8. Which of the following statement is incorrect?

a) Platyhelminthes have incomplete digestive system
b) In coelenterates, the arrangement of cells is more complex
c) Nereis is monoecious but earthworm and leeches are dioecious
d) Simple and compound eyes are present in the animals of those phylum whose over two-thirds of all named species on earth are arthropods

Deselect Answer

a)

b)

c)

d)

None

9. Which of the following undergoes the meiosis -I division?

a) Primary spermatocytes
b) Secondary spermatocytes
c) Spermatids
d) Spermatogonia

Deselect Answer

a)

b)

c)

d)

None

10. Menstrual cycle is divided into different phases in which follicular phase is also known as

a) Secretory phase
b) Luteal phase
c) Proliferative phase
d) Menstrual phase

Deselect Answer

a)

b)

c)

d)

None

11. Which of the following is a finger-like structure and lies at the upper junction of the two labia minora above the urethral opening

(a) Oviduct
(b) Clitoris
(c) Mons pubis
(d) Chorionic villi

Deselect Answer

a)

b)

c)

d)

None

12. Which of the following can be determined by amniocentesis

a) Turner’s syndrome
b) Klinefelter’s syndrome
c) Sex of the unborn child
d) All of these

Deselect Answer

a)

b)

c)

d)

None

13. Which method is used to have a child through GIFT?

a) Transfer of embryo with upto 8 blastomeres in fallopian tube
b) Transfer of sperm and unfertilized oocyte in fallopian tube
c) Insertion of sperm into cytoplasm of oocyte through zona pellucida
d) Introduction of sperm into uterus

Deselect Answer

a)

b)

c)

d)

None

14. Select the incorrect statement regarding health

a) Health can be defined as absence of disease
b) Healthy people are more efficient at work
c) Health increases productivity
d) Health reduces infant and maternal mortality

Deselect Answer

a)

b)

c)

d)

None

15. Choose the incorrect statement from the given options

a) Wuchereria bancrofti causes chronic inflammation of the lymphatic system
b) The pathogens of filaria are transmitted to a healthy person through houseflies
c) Trichophyton is responsible for ringworm
d) Amoebiasis is a protozoan disease

Deselect Answer

a)

b)

c)

d)

None

16. Match the following

a) A-(iv) B-(ii) C-(iii) D-(i)
b) A-(ii) B-(iv) C-(i) D-(iii)
c) A-(ii) B-(iv) C-(iii) D-(i)
d) A-(i) B-(iii) C-(iv) D-(ii)

Deselect Answer

a)

b)

c)

d)

None

17. Our immune system plays an important role in

a) Allergic reactions
b) Autoimmune disease
c) Organ transplantation
d) All of these

Deselect Answer

a)

b)

c)

d)

None

18. Assertion (A): X-rays and γ-rays are called carcinogens
Reason (R): Carcinogens transform normal cells into cancerous neoplastic cells

a) Both (A) and (R) are true, and (R) is the correct explanation of (A)
b) Both (A) and (R) are true, but (R) is not the correct explanation of (A)
c) (A) is true but (R) is false
d) (A) is false but (R) is true

Deselect Answer

a)

b)

c)

d)

None

19. Phytoplankton belongs to the kingdom

(a) Plantae
(b) Protista
(c) Monera
(d) Fungi

Deselect Answer

a)

b)

c)

d)

None

20. Alexander Fleming noticed the chemical produced by a mould could check the growth of bacterium on which he worke(d) The bacterium mentioned was

(a) Streptococcus
(b) Streptobacillus
(c) Staphylococcus
(d) Streptomyces

Deselect Answer

a)

b)

c)

d)

None

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